The action of theophylline on the isolated skin of the frog (Rana temporaria).
D000818:Animals; D001001:Anura; D001692:Biological Transport; D002463:Cell Membrane Permeability; D002712:Chlorides / Q000378:metabolism; D002713:Chlorine; D004553:Electric Conductivity; D011868:Radioisotopes; D011896:Rana temporaria; D012867:Skin / Q000187:drug effects* / Q000378:metabolism; D012964:Sodium / Q000378:metabolism; D012975:Sodium Isotopes; D013806:Theophylline / Q000494:pharmacology*
D002712:Chlorides; D011868:Radioisotopes; D012975:Sodium Isotopes; D002713:Chlorine; D012964:Sodium; D013806:Theophylline